A three-panel meme playing on the double meaning of “tan lines.”

• First panel: Text on the left reads “What guys think tan lines are.” On the right, an illustration shows a person’s upper arm with a sharp “farmer’s tan” line from a t-shirt sleeve.
• Second panel: Text on the left reads “What girls think tan lines are.” On the right, an illustration shows a woman’s collarbone and shoulders with pale lines left behind by bikini or halter straps.
• Third panel: Text on the left reads “What tan lines actually are.” On the right, a mathematical graph shows a coordinate plane with an x and y-axis. A curved line is plotted on the graph, and a straight line touches it at a single point, labeled “Tangent line.”